Chemical Building Blocks

Question 1

Matter

Answer 1

anything that takes up space

Question 2

Physical Property

Answer 2

observations of matter using your senses

Question 3

Chemical Property

Answer 3

observations of matter when it changes composition

Question 4

Periods

Answer 4

horizontal rows on the Perodic table

Question 5

Groups/Family

Answer 5

vertical rows on the Perodic table

Question 6

Atoms & Parts

Answer 6

basic particles of non-living things in nucleus (protons + neutrons) ; electrons on outside in shells

Question 7

4 Shells

Answer 7

S = 2, P = 6, D = 10, F =14

Question 8

Molecule

Answer 8

2 or more atoms held together by chemical bond

Question 9

2 Bonds

Answer 9

1. covalent 2 ionic

Question 10

Compound

Answer 10

2 or more elements combined in a ratio ex. H 2 O

Question 11

2 Types of Mixtures & Define

Answer 11

Heterogeneous – 2 substances that do not mix (ex. Oil/water)
Homogeneous – substances that is evenly mixed (ex. Pop)

Question 12

4 Ways to Separate Mixture

Answer 12

Magnetic attraction, distillation, evaporation, filtration

Question 13

Weight

Answer 13

Measure of gravity on an object

Question 14

Mass

Answer 14

Amount of matter contained inside the object

Question 15

Volume Equation & Units

Answer 15

V = L x H x W units = cm3

Question 16

Density Equation & Units

Answer 16

D = M / V units = g/cm 3 mass/ volume

Question 17

3 States of Matter & Describe Particles Moving

Answer 17

Solid = tightly packed together/slightly moving
Liquid = farther apart than a solid/moving faster
Gas = particles
moving farthest apart/ moving fastest; plasma

Question 18

Solid to Liquid

Answer 18

Melting

Question 19

Liquid to Gas

Answer 19

evaporation

Question 20

Gas to Liquid

Answer 20

Condensation

Question 21

Liquid to Solid

Answer 21

Freezing

Question 22

Gas to Solid or Solid to Gas

Answer 22

Sublimation

Question 23

4 Types of Chemical Change

Answer 23

1. Combustion (burning)
2. Electrolysis (electricity through
   changes it)
3. Oxidation (rusting)
4. tarnishing

Question 24

Conservation of Matter

Answer 24

matter can not be created nor destroyed - just changes forms

Question 25

Thermal Energy

Answer 25

amount of energy of moving particles

Question 26

2 Types of Energy and Examples

Answer 26

exothermic = heat is given off (ex. Campfire) endothermic = heat is taken in (ex. Melting of ice cube)

Question 27

Example of Physical Changes

Answer 27

bending, ripping, crushing, & changing states

Question 28

Kinetic Energy

Answer 28

moving energy (ex. a car moving)

Question 29

Potential Energy

Answer 29

stored energy (ex. battery)

Question 30

Chemical Energy

Answer 30

within the bonds between molecules (ex. coal)

Question 31

Electromagnetic Energy

Answer 31

energy in the form of waves in an empty space (ex. sun)

Question 32

Electrical Energy

Answer 32

attraction of positive protons to negative electrons (ex. lightning)